Well, it's true that JavaScript- and Canvas- powered ads are harder to distinguish from legitimate web content. But the flip-side is that they're (re-)programma

Well, it's true that JavaScript- and Canvas- powered ads are harder to distinguish from legitimate web content. But the flip-side is that they're (re-)programmable using standard JavaScript APIs, and thus vulnerable to manipulation by browser extensions in a way that Flash never was, being a proprietary binary format.